dcrat | 877671c4a555e37e34c6b9ecab2cc958b28cc9617c6f53e3841a6386de180e19

Analysis

max time kernel
23s
max time network
153s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
19/01/2025, 08:05

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General

Target

3d213353948aba4d80c28823d8661951.exe
Size

1.8MB
MD5

3d213353948aba4d80c28823d8661951
SHA1

8c7dadac2ee5f348a8940ab47187b39fd025bead
SHA256

877671c4a555e37e34c6b9ecab2cc958b28cc9617c6f53e3841a6386de180e19
SHA512

36ba2c76563094e5c8248a05c088ad9c496573ccb6a9799759c38ef77f89e61b9832c617abc7322646c7c029ec8e573f82a4a1cc25b656bee5af82a188cab6c1
SSDEEP

24576:/r34Nhem94rOh31QzGpKHaHYSvvv22db+PowhGhomMJV4ynedX4QD/d5lBxdU7it:/I6g1AqY2v22pVfSJKyiXRd5lKu

Score

10^/10

dcrat infostealer rat

Malware Config

Signatures

DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
rat infostealer dcrat
Dcrat family
dcrat

Process spawned unexpected child process 18 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3016	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2736	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2552	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2248	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	328	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1032	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2812	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2500	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2180	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1252	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2956	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3056	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2300	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2940	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2396	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2944	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1812	2756	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1796	2756	schtasks.exe	29

Executes dropped EXE 1 IoCs

pid	Process
572	csrss.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\DVD Maker\es-ES\lsass.exe	3d213353948aba4d80c28823d8661951.exe
File created	C:\Program Files\DVD Maker\es-ES\6203df4a6bafc7	3d213353948aba4d80c28823d8661951.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\PCHEALTH\csrss.exe	3d213353948aba4d80c28823d8661951.exe
File created	C:\Windows\PCHEALTH\886983d96e3d3e	3d213353948aba4d80c28823d8661951.exe
File created	C:\Windows\diagnostics\scheduled\Maintenance\de-DE\spoolsv.exe	3d213353948aba4d80c28823d8661951.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2736	schtasks.exe
2500	schtasks.exe
3056	schtasks.exe
2300	schtasks.exe
2552	schtasks.exe
328	schtasks.exe
2812	schtasks.exe
2956	schtasks.exe
1812	schtasks.exe
3016	schtasks.exe
1032	schtasks.exe
2180	schtasks.exe
1252	schtasks.exe
2396	schtasks.exe
2944	schtasks.exe
2248	schtasks.exe
2940	schtasks.exe
1796	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe
2808	3d213353948aba4d80c28823d8661951.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	3d213353948aba4d80c28823d8661951.exe
Token: SeDebugPrivilege	572	csrss.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 840	2808	3d213353948aba4d80c28823d8661951.exe	48
PID 2808 wrote to memory of 840	2808	3d213353948aba4d80c28823d8661951.exe	48
PID 2808 wrote to memory of 840	2808	3d213353948aba4d80c28823d8661951.exe	48
PID 840 wrote to memory of 2412	840	cmd.exe	50
PID 840 wrote to memory of 2412	840	cmd.exe	50
PID 840 wrote to memory of 2412	840	cmd.exe	50
PID 840 wrote to memory of 2108	840	cmd.exe	51
PID 840 wrote to memory of 2108	840	cmd.exe	51
PID 840 wrote to memory of 2108	840	cmd.exe	51
PID 840 wrote to memory of 572	840	cmd.exe	52
PID 840 wrote to memory of 572	840	cmd.exe	52
PID 840 wrote to memory of 572	840	cmd.exe	52

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe
"C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe"
1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\WjSZo78gzm.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:840
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2412
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:2108
- - C:\Windows\PCHEALTH\csrss.exe
    "C:\Windows\PCHEALTH\csrss.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:572

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\Program Files\DVD Maker\es-ES\lsass.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3016

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files\DVD Maker\es-ES\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2736

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 5 /tr "'C:\Program Files\DVD Maker\es-ES\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2552

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\smss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2248

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\MSOCache\All Users\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:328

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1032

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Windows\PCHEALTH\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2812

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\PCHEALTH\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2500

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Windows\PCHEALTH\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2180

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 6 /tr "'C:\Users\Default\SendTo\WmiPrvSE.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1252

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Users\Default\SendTo\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2956

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 5 /tr "'C:\Users\Default\SendTo\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3056

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\sppsvc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2300

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\All Users\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2940

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Users\All Users\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2396

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "3d213353948aba4d80c28823d86619513" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2944

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "3d213353948aba4d80c28823d8661951" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1812

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "3d213353948aba4d80c28823d86619513" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\AppData\Local\Temp\3d213353948aba4d80c28823d8661951.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\DVD Maker\es-ES\lsass.exe

Filesize
1.8MB

MD5
3d213353948aba4d80c28823d8661951

SHA1
8c7dadac2ee5f348a8940ab47187b39fd025bead

SHA256
877671c4a555e37e34c6b9ecab2cc958b28cc9617c6f53e3841a6386de180e19

SHA512
36ba2c76563094e5c8248a05c088ad9c496573ccb6a9799759c38ef77f89e61b9832c617abc7322646c7c029ec8e573f82a4a1cc25b656bee5af82a188cab6c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\WjSZo78gzm.bat

Filesize
205B

MD5
01fd79b7c35559c932b665886a3699bc

SHA1
61c92278278337fe47702ff92e46972db83eba01

SHA256
97d1a41765f709149921a0207f763c27d882287334fd1c0774aff8e10cc45dfc

SHA512
102068fc5463db991e340ed3c423bf9a44f2d0837bb8a98081d70f6513fe92208535f0ea17085bef5e3f5b784d95303d1062c72d7589e58a77b8dd528608a38d

Download Submit
memory/572-41-0x0000000001020000-0x00000000011FE000-memory.dmp

Filesize
1.9MB

Download
memory/2808-6-0x0000000000380000-0x000000000038E000-memory.dmp

Filesize
56KB

Download
memory/2808-16-0x0000000000390000-0x000000000039E000-memory.dmp

Filesize
56KB

Download
memory/2808-0-0x000007FEF5F03000-0x000007FEF5F04000-memory.dmp

Filesize
4KB

Download
memory/2808-7-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-8-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-10-0x0000000000540000-0x000000000055C000-memory.dmp

Filesize
112KB

Download
memory/2808-11-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-12-0x000007FEF5F03000-0x000007FEF5F04000-memory.dmp

Filesize
4KB

Download
memory/2808-17-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-4-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-18-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-14-0x0000000000560000-0x0000000000578000-memory.dmp

Filesize
96KB

Download
memory/2808-3-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-30-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-31-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-2-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-37-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-38-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-1-0x0000000000AD0000-0x0000000000CAE000-memory.dmp

Filesize
1.9MB

Download